Παραπομπή APA

Martin, J., & McColly, H. (2010). Introduction to agricultural engineering. Axis book.

Παραπομπή Chicago Style

Martin, J.W, και H.F McColly. Introduction to Agricultural Engineering. Jodhpur: Axis book, 2010.

Παραπομπή MLA

Martin, J.W, και H.F McColly. Introduction to Agricultural Engineering. Axis book, 2010.